<template>
  <div class="app-container">
    <!--查询表单-->
    <div class="search-div">
      <el-form label-width="70px" size="small">
        <el-row>
          <el-col :span="24" class="el-col-form">
            <el-form-item label="购物车">
              <el-input
                style="width: 100%"
                v-model="searchObj.keyword"
                placeholder="用户邮箱/商品"
              ></el-input>
            </el-form-item>
          </el-col>
          <el-col :span="24" class="el-col-button">
            <el-button
              type="primary"
              icon="el-icon-search"
              size="mini"
              @click="getListByKeyword()"
              >搜索</el-button
            >
            <el-button icon="el-icon-refresh" size="mini" @click="resetData"
              >重置</el-button
            >
          </el-col>
        </el-row>
      </el-form>
    </div>
    <!-- 工具条 -->
    <div class="tools-div">
      <!--       <el-button type="success" icon="el-icon-plus" size="mini" @click="add"
        >添 加</el-button
      > -->
      <el-button class="btn-add" size="mini" @click="batchRemove()"
        >批量删除</el-button
      >
    </div>
    <el-table
      v-loading="listLoading"
      :data="list"
      stripe
      border
      style="width: 100%; margin-top: 10px"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" />
      <el-table-column label="序号" width="70" align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <!-- <el-table-column prop="userEmail" label="用户名" /> -->
      <el-table-column prop="userEmail" label="用户邮箱" />
      <el-table-column prop="bookName" label="购买商品" />
      <el-table-column prop="cartPrice" label="商品单价" />
      <el-table-column prop="cartCount" label="购买数量" />
      <el-table-column prop="cartTotalPrice" label="总价" />
      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <el-button
            type="primary"
            icon="el-icon-edit"
            size="mini"
            @click="edit(scope.row.cartId)"
            title="修改"
          />
          <el-button
            type="danger"
            icon="el-icon-delete"
            size="mini"
            @click="removeDataById(scope.row.cartId)"
            title="删除"
          />
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页组件 -->
    <el-pagination
      :current-page="page"
      :total="total"
      :page-size="limit"
      style="padding: 30px 0; text-align: center"
      layout="total, prev, pager, next, jumper"
      @current-change="fetchData"
    />
    <!-- 弹出框 -->
    <el-dialog title="修改" :visible.sync="dialogVisible" width="40%">
      <el-form
        ref="dataForm"
        :model="sysCart"
        label-width="150px"
        size="small"
        style="padding-right: 40px"
      >
        <el-form-item label="用户邮箱">
          <el-input v-model="sysCart.userEmail" />
        </el-form-item>
        <el-form-item label="购买商品">
          <el-input v-model="sysCart.bookName" />
        </el-form-item>
        <el-form-item label="商品单价">
          <el-input v-model="sysCart.cartPrice" />
        </el-form-item>
        <el-form-item label="购买数量">
          <el-input v-model="sysCart.cartCount" />
        </el-form-item>
        <el-form-item label="总价">
          <el-input
            v-model="(sysCart.cartPrice * sysCart.cartCount).toFixed(2)"
          />
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button
          @click="dialogVisible = false"
          size="small"
          icon="el-icon-refresh-right"
          >取 消</el-button
        >
        <el-button
          type="primary"
          icon="el-icon-check"
          @click="saveOrUpdate()"
          size="small"
          >确 定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>

<script>
import api from "@/api/cart";
export default {
  // 定义数据模型
  data() {
    return {
      multipleSelection: [], // 批量删除选中的记录列表
      listLoading: false, // 数据是否正在加载
      list: [], // 角色列表
      total: 0, // 总记录数
      page: 1, // 页码
      limit: 5, // 每页记录数
      searchObj: {}, // 查询条件
      dialogVisible: false,
      sysCart: {},
      saveBtnDisabled: false,
    };
  },
  //页面渲染之前获取数据
  created() {
    this.fetchData();
  },
  // 定义方法
  methods: {
    // 当多选选项发生变化的时候调用
    handleSelectionChange(selection) {
      console.log(selection);
      this.multipleSelection = selection;
    },
    // 批量删除
    batchRemove() {
      if (this.multipleSelection.length === 0) {
        this.$message.warning("请选择要删除的记录！");
        return;
      }
      this.$confirm("此操作将永久删除该记录, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(() => {
          // 点击确定，远程调用ajax
          // 遍历selection，将id取出放入id列表
          var idList = [];
          this.multipleSelection.forEach((item) => {
            idList.push(item.cartId);
          });
          // 调用api
          return api.batchRemove(idList);
        })
        .then((response) => {
          this.fetchData();
          this.$message.success(response.message || '删除成功')
        })
        .catch((error) => {
          if (error === "cancel") {
            this.$message.info("取消删除");
          }
        });
    },
    //弹出添加的表单
    add() {
      this.dialogVisible = true;
      this.sysCart = {};
    },
    //添加或更新
    saveOrUpdate() {
      this.update();
    },
    //添加
    save() {
      /* api.save(this.sysCart).then((response) => {
        this.$message.success(response.message || "操作成功");
        this.dialogVisible = false;
        this.fetchData(this.page);
      }); */
    },
    //编辑
    edit(id) {
      this.dialogVisible = true;
      api.getById(id).then((response) => {
        this.sysCart = response.data;
        // console.log("## ", response);
      });
    },
    //更新
    update() {
      api.updateById(this.sysCart).then((response) => {
        this.$message.success(response.message || "操作成功");
        this.dialogVisible = false;
        this.fetchData(this.page);
      });
    },
    // 重置表单
    resetData() {
      console.log("重置查询表单");
      this.searchObj = {};
      this.fetchData();
    },
    fetchData(pageNum = 1) {
      this.page = pageNum;
      // 调用api
      api.getPageList(this.page, this.limit).then((response) => {
        console.log(response);
        this.list = response.data.pages.records;
        this.total = response.data.pages.total;
      });
    },
    removeDataById(id) {
      // debugger
      this.$confirm("此操作将永久删除该记录, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(() => {
          api.removeById(id).then(
            (response) => {
              this.fetchData(this.page);
              this.$message.success(response.message || "删除成功");
            },
            (error) => {}
          );
        })
        .catch(() => {
          this.$message.info("取消删除");
        });
    },
    getListByKeyword() {
      console.log("###", this.page, this.limit, this.searchObj.keyword);
      if (typeof this.searchObj.keyword === "undefined") {
        this.fetchData();
      }
      api
        .getListByKeyword(this.page, this.limit, this.searchObj.keyword)
        .then((response) => {
          // console.log(response);
          this.list = response.data.data.records;
          this.total = response.data.data.total;
          this.$message({
            type: "success",
            message: "查询成功",
          });
        });
    },
  },
};
</script>
  <style scoped>
.el-col-form {
  height: 34px;
}
.el-col-button {
  padding-left: 23px;
  padding-top: 3‒;
  padding-top: 2px;
}
.search-div {
  padding: 10px;
  border: 1px solid #ebeef5;
  border-radius: 3px;
}
.tools-div {
  margin-top: 10px;
  padding: 10px;
  border: 1px solid #ebeef5;
  border-radius: 3px;
}
</style> 